WSAU21 AMMC 140813

YMMM SIGMET U04 VALID 140840/141240 YMMC-

YMMM MELBOURNE FIR SEV TURB FCST WI S1810 E08450 - S2800 E09250 -

S2850 E09010 - S2450 E08450 - S1830 E08220 FL280/340 MOV E 20KT NC=